物理化学学报 >> 1992, Vol. 8 >> Issue (02): 247-250.doi: 10.3866/PKU.WHXB19920221

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ABO3型稀土铝酸盐的表面状态及其催化性能

王江; 甄开吉; 魏诠; 毕颖丽   

  1. 吉林大学化学系，长春 130023
  • 收稿日期:1990-11-23 修回日期:1991-04-01 发布日期:1992-04-15
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The Surface Properties of LaAlO3 Perovskite Oxides and Their Catalytic Activities

Wang Jiang; Zhen Kai-Ji; Wei Quan; Bi Ying-Li   

  1. Department of Chemistry, Jilin University, Changchun 130023
  • Received:1990-11-23 Revised:1991-04-01 Published:1992-04-15
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关键词: 稀土铝酸盐, 表面状态, 甲烷氧化偶联

Abstract: A series of rare earth aluminate oxides were prepared by nitrate decomposition. The catalysts obtained were characterized by XRD, CO_2 TPD and XPS techniques and their catalytic activities for methane coupling were measured, The experimental results showed that the basicity of the surface can be interpreted by the double ioni-zation energy of oxygen species on the surface. There exists some correlation between this parameter and their catalytic activities.

Key words: Rare earth aluminate, Surface composition, Oxidative coupling of methane